TREAM_READ),L.readPixels(U,W,H,k,me.convert(Ke),me.convert(it),0),L.bindBuffer(L.PIXEL_PACK_BUFFER,null);let zt=ie!==null?G.get(ie).__webglFramebuffer:null;_.bindFramebuffer(L.FRAMEBUFFER,zt);let At=L.fenceSync(L.SYNC_GPU_COMMANDS_COMPLETE,0);return L.flush(),await qd(L,At,4),L.bindBuffer(L.PIXEL_PACK_BUFFER,gt),L.getBufferSubData(L.PIXEL_PACK_BUFFER,0,Me),L.bindBuffer(L.PIXEL_PACK_BUFFER,null),L.deleteBuffer(gt),L.deleteSync(At),Me}else throw new Error("THREE.WebGLRenderer.readRenderTargetPixelsAsync: requested read bounds are out of range.")},this.copyFramebufferToTexture=function(S,U=null,W=0){let H=Math.pow(2,-W),k=Math.floor(S.image.width*H),Me=Math.floor(S.image.height*H),Te=U!==null?U.x:0,ye=U!==null?U.y:0;Z.setTexture2D(S,0),L.copyTexSubImage2D(L.TEXTURE_2D,W,0,0,Te,ye,k,Me),_.unbindTexture()},this.copyTextureToTexture=function(S,U,W=null,H=null,k=0,Me=0){let Te,ye,Ae,Ie,Ke,it,Re,gt,zt,At=S.isCompressedTexture?S.mipmaps[Me]:S.image;if(W!==null)Te=W.max.x-W.min.x,ye=W.max.y-W.min.y,Ae=W.isBox3?W.max.z-W.min.z:1,Ie=W.min.x,Ke=W.min.y,it=W.isBox3?W.min.z:0;else{let Ut=Math.pow(2,-k);Te=Math.floor(At.width*Ut),ye=Math.floor(At.height*Ut),S.isDataArrayTexture?Ae=At.depth:S.isData3DTexture?Ae=Math.floor(At.depth*Ut):Ae=1,Ie=0,Ke=0,it=0}H!==null?(Re=H.x,gt=H.y,zt=H.z):(Re=0,gt=0,zt=0);let St=me.convert(U.format),en=me.convert(U.type),Ee;U.isData3DTexture?(Z.setTexture3D(U,0),Ee=L.TEXTURE_3D):U.isDataArrayTexture||U.isCompressedArrayTexture?(Z.setTexture2DArray(U,0),Ee=L.TEXTURE_2D_ARRAY):(Z.setTexture2D(U,0),Ee=L.TEXTURE_2D),_.activeTexture(L.TEXTURE0),_.pixelStorei(L.UNPACK_FLIP_Y_WEBGL,U.flipY),_.pixelStorei(L.UNPACK_PREMULTIPLY_ALPHA_WEBGL,U.premultiplyAlpha),_.pixelStorei(L.UNPACK_ALIGNMENT,U.unpackAlignment);let hn=_.getParameter(L.UNPACK_ROW_LENGTH),lt=_.getParameter(L.UNPACK_IMAGE_HEIGHT),Pn=_.getParameter(L.UNPACK_SKIP_PIXELS),ti=_.getParameter(L.UNPACK_SKIP_ROWS),wi=_.getParameter(L.UNPACK_SKIP_IMAGES);_.pixelStorei(L.UNPACK_ROW_LENGTH,At.width),_.pixelStorei(L.UNPACK_IMAGE_HEIGHT,At.height),_.pixelStorei(L.UNPACK_SKIP_PIXELS,Ie),_.pixelStorei(L.UNPACK_SKIP_ROWS,Ke),_.pixelStorei(L.UNPACK_SKIP_IMAGES,it);let ys=S.isDataArrayTexture||S.isData3DTexture,vt=U.isDataArrayTexture||U.isData3DTexture;if(S.isDepthTexture){let Ut=G.get(S),Ai=G.get(U),Tt=G.get(Ut.__renderTarget),Ri=G.get(Ai.__renderTarget);_.bindFramebuffer(L.READ_FRAMEBUFFER,Tt.__webglFramebuffer),_.bindFramebuffer(L.DRAW_FRAMEBUFFER,Ri.__webglFramebuffer);for(let Ms=0;Ms